This year’s preseason campaign may be more important than the lead-in exhibitions of a standard season, but there’s still only so much that can be digested from a mere prologue. Still, we can glean hints of the year to come, even in the context of games that don’t matter. With that, here are eight observations from the Mavs’ two preseason games against the Oklahoma City Thunder, laced with a nice balance of optimism and gloom: